What is adiabatic
saturation temperature?
It is the temperature at which the outlet air can be brought
into saturation state by passing through the water in the long insulated duct
(adiabatic) by the evaporation of water due to latent heat of vaporization.
What is psychrometer?
Psychrometer is an instrument which measures both dry bulb
temperature and wet bulb temperature.
What is psychrometric
chart?
It is the graphical plot with specific humidity and partial
pressure of water vapour in y axis and dry
bulb temperature along x axis. The specific volume of
mixture, wet bulb temperature, relative
humidity and enthalpy are the properties appeared in the
psychrometric chart.
What is sensible heat
and latent heat?
Sensible heat is the heat that changes the temperature of
the substance when added to it or when
abstracted from it. Latent heat is the heat that does not
affect the temperature but change of state occurred by adding the heat or by
abstracting the heat.
What is degree of
saturation?
It is the ratio of the actual specific humidity and the
saturated specific humidity at the same
temperature of the mixture.
What is dew point
temperature?
The temperature at which the vapour starts condensing is
called dew point temperature. It is also equal to the saturation temperature at
the partial pressure of water vapour in the mixture. The dew point temperature
is an indication of specific humidity.
What is meant by dry
bulb temperature (DBT)?
The temperature recorded by the thermometer with a dry bulb.
The dry bulb thermometer cannot affect by the moisture present in the air. It
is the measure of sensible heat of the air.